New organocopper reagents prepared utilizing highly reactive copper
作者:Reuben D. Rieke、Richard M. Wehmeyer、Tse-Chong Wu、Greg W. Ebert
DOI:10.1016/0040-4020(89)80072-9
日期:1989.1
Highly reactive copper solutions have been prepared by the lithium naphthalide reduction of copper(I) iodide/trialkylphosphine complexes. These activated copper solutions will react with organic halides under very mild conditions to form stable organocopper reagents. Significantly, the organocopper reagents can contain considerable functionalities such as ester, nitrile, chloride, epoxide, and ketone
Direct formation of functionalized ketones via the coupling of functionalized organocopper reagents with acid chlorides
作者:Richard M. Wehmeyer、Reuben D. Rieke
DOI:10.1016/s0040-4039(00)80534-1
日期:1988.1
reactive copper solutions have been prepared by the lithium naphthalide reduction of a copper(I) iodide/triphenyl-phosphine complex. These copper solutions react rapidly with functionalized alkyl halides to give organocopper reagents which have been effectively trapped with acid chlorides giving functionalized ketones in good yields. Ester, nitrile, chloride, remote epoxide, and, to some degree, ketone groups
The invention concerns a new process for the preparation of ketones; according to this process ketones are prepared from aldehydes and unsaturated compounds in the presence of bases using quaternary ammonium salts as catalysts.
Electrophotochemical Ce-Catalyzed Ring-Opening Functionalization of Cycloalkanols under Redox-Neutral Conditions: Scope and Mechanism
作者:Zhaoliang Yang、Dali Yang、Jianye Zhang、Chenyu Tan、Jiajun Li、Shengchun Wang、Heng Zhang、Zhiliang Huang、Aiwen Lei
DOI:10.1021/jacs.2c05520
日期:2022.8.3
alcohols is gaining increasing interest in organic synthesis and biomass conversion. In particular, the development of redox-neutral catalytic methods with cheap catalysts and clean energy is of utmost interest. In this work, we report a versatile redox-neutral method for the ring-opening functionalization of cycloalkanols by electrophotochemical (EPC) cerium (Ce) catalysis. The EPC-Ce-enabled catalysis